Nuclear core inlet flow arrangement

ABSTRACT

A NUCLEAR CORE ARRANGEMENT FOR ADMITTING REACTOR COOLANT INTO NUCLEAR REACTOR FUEL ASSEMBLIES. INLET NOZZLES HAVING MAIN AND ALTERNATE INLETS ARE ATTACHED TO THE FUEL ASSEMBLIES. EACH OF THE NOZZLE INLETS RECEIVE REACTOR COOLANT FROM A SEPARATE FLOW PLENUM. THE FLOW PLENUMS ARE ARRANGED IN PARALLEL AND ARE SEPARATED BY A PERFORATED SEALING MEMBER. SHOULD THE MAIN INLET TO THE FUEL ASSEM-   BLY BECOME CLOGGED BY DEBRIS, THE ALTENATE INLET SUPPLIES THEFUEL ASSEMBLY WITH REACTOR COOLANT.

DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at therequest of the applicant or owner in accordance with the Notice of Dec.16, 1969, 869 0.G. 687. The abstracts of Defensive Publicationapplications are identified by distinctly numbered series and arearranged chronologically. The heading of each abstract indicates thenumber of pages of specification, including claims and sheets ofdrawings contained in the application as originally filed. The files ofthese applications are available to the public-for inspection andreproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to themerits of alleged invention. The Patent Oflice makes no assertion as tothe novelty of the disclosed subject matter;

PUBLISHED APRIL 17, 1973 lllllllllllm' T909,019 NUCLEAR CORE INLET FLOWARRANGEMENT f John F. Patterson, Jr., Murrysville, Pa., assignor toWestinghouse Electric Corporation, Pittsburgh, Pa. Filed June 13, 1972,Ser. No. 262,434

Int. Cl. G21c 15/22, 15/24, 19/28 US. Cl. 176-61 1 Sheet Drawing. 11Pages Specification A nuclear core arrangement for admitting reactorcooli ant into nuclear reactor fuel assemblies. Inlet nozzles havingmain and alternate inlets are attached to the fuel assemblies. Each ofthe nozzle inlets receive reactor coolant from a separate flow plenum.The flow plenums are arranged in parallel and are separated by aperforated sealing member. Should the main inlet to the fuel assemblybecome clogged by debris, the alternate inlet supplies the fuel assemblywith reactor coolant.

April 17, 1973 J. F. PATTERSON, JR

NUCLEAR CORE INLET FLOW ARRANGEMENT Filed June 15, 1972 M V I 1 W t: m am m H i m M m U U W T l "u 8 0 7 n 7 I O O 0 o 0 9 2 O rrr I. O O

